osmium::util::AnonymousMemoryMapping Class Reference

#include <memory_mapping.hpp>

Inheritance diagram for osmium::util::AnonymousMemoryMapping:

Collaboration diagram for osmium::util::AnonymousMemoryMapping:

Public Member Functions
	AnonymousMemoryMapping (std::size_t size)
Public Member Functions inherited from osmium::util::MemoryMapping
	MemoryMapping (std::size_t size, mapping_mode mode, int fd=-1, off_t offset=0)
	MemoryMapping (const MemoryMapping &)=delete
	You can not copy construct a MemoryMapping. More...
MemoryMapping &	operator= (const MemoryMapping &)=delete
	You can not copy a MemoryMapping. More...
	MemoryMapping (MemoryMapping &&other) noexcept
MemoryMapping &	operator= (MemoryMapping &&other) noexcept
	~MemoryMapping () noexcept
void	unmap ()
void	resize (std::size_t new_size)
	operator bool () const noexcept
std::size_t	size () const noexcept
int	fd () const noexcept
bool	writable () const noexcept
template<typename T = void>
T *	get_addr () const noexcept

Additional Inherited Members
Public Types inherited from osmium::util::MemoryMapping
enum class	mapping_mode { readonly = 0 , write_private = 1 , write_shared = 2 }

Detailed Description

Anonymous memory mapping.

Usage for anonymous mapping:

AnonymousMemoryMapping mapping{1024}; // create anonymous mapping with size
auto ptr = mapping.get_addr<char*>(); // get pointer to memory
mapping.unmap();                      // release mapping by calling unmap() (or at end of scope)

Constructor & Destructor Documentation

AnonymousMemoryMapping()

osmium::util::AnonymousMemoryMapping::AnonymousMemoryMapping ( std::size_t  size )

inlineexplicit

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The documentation for this class was generated from the following file:

• include/osmium/util/memory_mapping.hpp